Etta a



(fio Model.)

E. A. GOODELL.

I VBNTILATOR. No. 397,122. Patented Peb. 5, v1889.

Gloznmavs,

UNITED STATES PATENT OEEicE.

ETTA A. GOODELL, OF CHICAGO, ILLINOIS, ASSIGNOR TOv TI-IE CONSOLIDATEDPATENTS COMPANY, OF SAME PLACE.

VENTILATOR-A SPECIFICATION forming part of Letters Patent No. 397,122,dated February 5, 1889.

Application filed December 8, 1857. Serial No. 257,325. (No model.)

To all whom it may concern: said parts that it may be moved in a planeBe it known that I, ETTA A. GOODELL, a parallel to the plane of theWheel, so as to citizen of the United States, residing at Chiwholly orpartially cover or uncover said cago, Cook county, Illinois, haveinvented cerwheel, thus regulating the flow of air through 5 tain newand useful Improvements in Venti- 'the same, as may bev desired. 55

laters, ot which the following is a specification. In order to properlyguide the sliding cover My invention relates to thatclass of deviceswith but little frictional resistance, and at employed in connect-ionwith openings for the same time provide a cheap but effectiveVentilating chambers; and it consists of cerconnection for said cover, Iprovide the same Io tain appliances, fully setforth hereinafter, forwith a central transverse slit or opening, ou, 6o regulating the passageof air through said extending nearly to the edges of the slide openings,and in the construction of the venand receiving a lug or guide, E, uponsome tilating-wheels sometimes used in connection part of the frame ofthe wheel. The said with such openings. guide E consists, preferably, oftwo thin i 5 In the accompanyingdrawings, Figure l is a metal platessoldered at their edges to one of 65 side elevation of aventilator wheeland frame the arms h, and, after passing through the slot embodying' myinvention. Fig. is a per- 00, being bent at right angles to form lips Yspective `view thereof. Fig. 3 is a section on m on, which prevent theremoval ot the cover the Iine l 2, 2, looking in the direction of D,which can then slide freely upon the stem 2o the arrow. of the lug. 7 O

The rim A, which suppinfts the wheel B, In order to operate the slidewith facility I consists ot' a narrow cylinder, a, having eX- prefer toarrange the device so .that the slot ternal converging flan ges, b b,which receive of the slide will be vertical, and to draw the betweenthem the glass plate when the ventislide upward by means of a cord, J,the slide lator is being supported in the pane of awindescending whenthe cord is slackened by 75 dow. In other cases, where the ventilatorisgravity. A convenient construction is shown simply inserted in anopening in the wall, in the drawings, and consists in providing thedoor, &c., one ot' the flanges maybe dispensed slide at each end of theslot with an eye, n with. nf', through which extends the operating-cord5o The wheel I consists of a narrow cylinder J, having two knots, s s,for bearing against 8o or rim, d, and a plate divided radially and saideyes; and in a line with the upper eye, bent to torni veins e, solderedat their outer n, I secure to the rim A a third eye, if, through ends tothe rim d, said plate being dat, with which the cord extends, so that bypulling two central convex portions, fj' on opposite upon the said cordthe slide may be raised,

3 5 sides, constituting a thickened hollow hub and by slaekening saidcord the slide will de- S5 for supporting rigidly a transverse wire,conscend. If the slide should become bent or stituting the shaft L' ofthe wheel. This wheel wedged, so as not to descend readily by gravisvery simple in construction, and besides ity, a downward pull upon theother portion, possesses great strength, the central convex J, of thecord will serve to carry it to the de- 40 portions which form the hollowhub giving sired position. 9o rigidity to the wheel and preventing itsbe- The above-described construction and arcoming warped. The wheel B issupported rangement of operating means for moving the with but littlefrictional resistance in two reslide may be used in connection withslides cessed steps or buttons, g g, each receiving intended for chimneyor other openings in 45 one end of the shaft 'i and each supportedcenwhich the ventilating wheels are not em- 95 trally within the rim Aby radial arms 7i, exployed. tending and secured to the rim. IVithoutlimiting' myself to the precise con= Vith the ventilator-wheel and itssupportstruction and arrangement oi' parts shown, I ing-rim I combine anadjustable cover in the claimt 5o form of a slide, I), and so connect itwith 1. The combination,with a lid or frame, A, 10o

iuclosing' :L Ventilallor-Opening, of :L cover, D, m'mngecl 1o slide in:1y pluim parallel to Saul 'Frame mul pl'ovidml with u l'l'nnsvci'seslof, :111, l'cceivilxg :L guiding-Sinni, E, upon lille fl'z'uno,

